- The mixed-halide perovskite FAPb(BryI1–y)3 is attractive for color-tunable and tandem solar cells. Bimolecular and Auger charge-carrier recombination rate constants strongly correlate with the Br content, y, suggesting a link with electronic structure. FAPbBr3 and FAPbI3 exhibit charge-carrier mobilities of 14 and 27 cm2 V−1 s−1 and diffusion lengths exceeding 1 μm, while mobilities across the mixed Br/I system depend on crystalline phase disorder.
- Publication status:
- Peer review status:
- Peer reviewed
- Publisher's version
- Funding agency for:
- Eperon, GE
- Copyright holder:
- Rehman et al.
- Copyright date:
- © 2015 The Authors. Published by WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim. This is an open access article under the terms of the Creative Commons Attribution License
Charge-Carrier Dynamics and Mobilities in Formamidinium Lead Mixed-Halide Perovskites
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